Equivalent & Substitute Parts for UKT1A331MPD1TA

Part Overview

The UKT1A331MPD1TA is a 330 µF, 10 V aluminum electrolytic capacitor in radial configuration manufactured by Nichicon. This component is classified as Not For New Designs, indicating it has been superseded in the product portfolio. Finding equivalent or substitute parts is necessary for maintenance applications, legacy system repairs, and inventory management where the original part may no longer be readily available or where design upgrades are beneficial.

Substiute Parts

UKT1A331MPD1TA

NichiconIn Stock: 999UKT1A331MPD1TA Datasheet

Current PartRFQ

UKA1A331MPD1TD

NichiconIn Stock: 2261UKA1A331MPD1TD Datasheet

DirectRFQ

UPA1C331MPD1TA

NichiconIn Stock: 759UPA1C331MPD1TA Datasheet

UpgradeRFQ

UPA1E331MPD1TA

NichiconIn Stock: 1128UPA1E331MPD1TA Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the UKT1A331MPD1TA is determined by the following critical parameters:

• Capacitance: Must remain 330 µF (±20% tolerance acceptable)
• Voltage Rating: Minimum 10 V; higher voltage ratings are acceptable for backward compatibility
• Package / Case: Radial, Can configuration required
• Mounting Type: Through Hole required
• Physical Dimensions: Lead spacing 0.138" (4.60mm), diameter 0.315" (8.00mm), height 0.512" (13.00mm) maximum
• Polarization: Polar configuration required
• Operating Temperature Range: -55°C ~ 105°C minimum

Substitute parts are grouped into two categories:

Direct Equivalent: UKA1A331MPD1TD maintains identical electrical specifications (330 µF, 10 V) with improved lifetime rating (2000 Hrs @ 105°C vs. 1000 Hrs).

Upgrade Options: UPA1C331MPD1TA (16 V) and UPA1E331MPD1TA (25 V) provide higher voltage ratings while maintaining the same capacitance, physical dimensions, and mounting characteristics. These are suitable for applications where voltage margin improvement is desired.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Same Voltage Rating)

The UKA1A331MPD1TD is the direct equivalent to UKT1A331MPD1TA. Both maintain 10 V rating and identical physical dimensions. The UKA1A331MPD1TD offers extended lifetime (2000 Hrs @ 105°C versus 1000 Hrs), providing improved reliability in the same form factor. This part carries Not For New Designs status, consistent with the original part. Selection of UKA1A331MPD1TD is appropriate for direct substitution in existing designs where the 10 V rating is specified.

For Upgraded Performance (Higher Voltage Rating)

The UPA1C331MPD1TA (16 V) and UPA1E331MPD1TA (25 V) are Active status products from Nichicon's current portfolio. Both provide superior lifetime ratings (3000 Hrs @ 105°C) and higher voltage margins. These parts are electrically and mechanically compatible with the original UKT1A331MPD1TA, fitting the same PCB footprint and mounting configuration. Selection of UPA series capacitors is appropriate for new designs or system upgrades where extended component life and voltage headroom are beneficial.

Frequently Asked Questions (FAQ)

Q: Can UKA1A331MPD1TD be used as a direct replacement for UKT1A331MPD1TA?

A: Yes. Both parts share identical electrical specifications (330 µF, 10 V, ±20% tolerance) and physical dimensions (0.315" diameter, 0.512" height, 0.138" lead spacing). The UKA1A331MPD1TD provides extended lifetime at rated temperature, making it a suitable direct replacement.

Q: What is the difference between the UKT1A331MPD1TA and UPA1C331MPD1TA?

A: The primary difference is voltage rating: UKT1A331MPD1TA is rated 10 V, while UPA1C331MPD1TA is rated 16 V. Both maintain 330 µF capacitance and identical physical dimensions. The UPA1C331MPD1TA also offers extended lifetime (3000 Hrs @ 105°C) and Active product status. The higher voltage rating provides additional design margin in applications where the circuit voltage may fluctuate.

Q: Are the UPA1C331MPD1TA and UPA1E331MPD1TA interchangeable?

A: Yes, from a mechanical and electrical capacitance perspective. Both are 330 µF with identical physical dimensions and mounting configuration. The difference is voltage rating: UPA1C331MPD1TA is 16 V, UPA1E331MPD1TA is 25 V. Selection depends on the circuit voltage requirement. A 25 V rated capacitor can be used in a 16 V application, but not vice versa.

Q: Will these substitute parts fit the same PCB footprint?

A: Yes. All substitute parts maintain the same lead spacing (0.138" / 4.60mm), diameter (0.315" / 8.00mm), and maximum height (0.512" / 13.00mm). They are designed for Through Hole mounting and are mechanically compatible with the original UKT1A331MPD1TA footprint.

Q: What does "Not For New Designs" status mean?

A: This designation indicates the part has been superseded in the manufacturer's product line. While the part remains available, it is not recommended for new circuit designs. For new applications, Active status parts such as UPA1C331MPD1TA or UPA1E331MPD1TA are preferred.

Q: Can a higher voltage rated capacitor be used in place of a lower voltage rated one?

A: Yes. A capacitor rated for higher voltage can be used in applications requiring lower voltage. For example, a 25 V capacitor (UPA1E331MPD1TA) can be used in a 10 V application. However, the reverse is not true: a 10 V capacitor cannot be used where 16 V or 25 V is required.